Accelerate the development of external resources, access to more than 50 billion tons of coal reserves;

加快外部资源开发，获得了50多亿吨的煤炭储量；

youdao

On this basis, put forward and expounded China's comparative advantage from the connotation of resources, external economic and competitive advantage to be three levels of development.

在此基础上，提出并阐述了我国比较优势的内涵可以从资源、外部经济及竞争优势三个层次予以拓展。

youdao

Their national governments have placed importance on the development of a quality education system but geographical difficulties, migration to main centres, limited resources and heavy dependency on external aid for quality improvement in education make the task challenging.

UNESCO: OFFICE IN APIA